JPS6399450U - - Google Patents
Info
- Publication number
- JPS6399450U JPS6399450U JP19430486U JP19430486U JPS6399450U JP S6399450 U JPS6399450 U JP S6399450U JP 19430486 U JP19430486 U JP 19430486U JP 19430486 U JP19430486 U JP 19430486U JP S6399450 U JPS6399450 U JP S6399450U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- signal
- filter
- incoming call
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19430486U JPS6399450U (fi) | 1986-12-17 | 1986-12-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19430486U JPS6399450U (fi) | 1986-12-17 | 1986-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6399450U true JPS6399450U (fi) | 1988-06-28 |
Family
ID=31151154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19430486U Pending JPS6399450U (fi) | 1986-12-17 | 1986-12-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6399450U (fi) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58198952A (ja) * | 1982-05-17 | 1983-11-19 | Nippon Telegr & Teleph Corp <Ntt> | 通信中サ−ビス用信号方式 |
-
1986
- 1986-12-17 JP JP19430486U patent/JPS6399450U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58198952A (ja) * | 1982-05-17 | 1983-11-19 | Nippon Telegr & Teleph Corp <Ntt> | 通信中サ−ビス用信号方式 |